Siemens DP/AS-Interface Link 20E, Руководство пользователя

Страница: 33 / 160

Technical Description, Installation Instructions, Operation
33
DP/AS-Interface Link 20E
Release 11/2002
C79000-G8976-C138–04
1.9.2 Importing a GSD File
Entries in the Configuration Tool of the DP Master
If you have imported the GSD file into the configuration tool of your DP master, you
can make various selections as follows:
S
Configuration
You can choose between the following:
– Max. 16/16 bytes (general identification format)
Select this configuration if your DP master can only handle DP configuration
frames with a general identification format. You can then only exchange data
with standard AS-i slaves or with A slaves.
– Maximum 32/32 bytes (special identification format)
Select this configuration if your DP master can handle DP configuration
frames with a special identification format. In this case, you can use the
entire binary data interface of the DP/AS Interface Link 20E.
S
Parameter Assignment
When setting parameters for DP operation with the DP/AS Interface Link 20E,
you can select between the following operating parameters:
– DPV1 (acyclic data) enable/disable (default “disable”)
With these operating parameters, the “DPV1 disable” mode is the default.
With this setting, no acyclic data transfer is possible!
If you want to use the command interface and the analog data transfer with
the AS-Interface, you must select “DPV1 = enable”.
– Diagnostic Interrupt enable/disable (default “enable”)
With these operating parameters, the “Diagnostic Interrupt enable” mode is
the default. With this setting, the DP/AS Interface Link 20E triggers
diagnostic interrupts if an error occurs.
If you want to deactivate this response, select “Diagnostic Interrupt =
disable”
– S7 mode enable/disable (default “disable”)
This operating parameter must be set to enable if an S7 device is used as
the DP master and when the master is configured with STEP7 V5.0 SP2 or
with an earlier version.
!
Caution
If you use a DPV0 master, you must leave the “DPV1 disable” setting! Otherwise
the I/O transfer may be deactivated if AS-i errors occur.